def test_peek_last_item_ttl(self):
l = TTLRU(2)
l.set_with_ttl(0, 0, int(80e6))
l.set_with_ttl(1, 1, int(20e6))
self.assertEqual(l.peek_first_item(), (1, 1))
self.assertEqual(l.peek_last_item(), (0, 0))
time.sleep(0.01) # approximately 0.01s
self.assertEqual(l.peek_last_item(), (0, 0))
time.sleep(0.01) # approximately 0.02s
self.assertEqual(l.peek_last_item(), (0, 0))
time.sleep(0.05) # approximately 0.07s
self.assertEqual(l.peek_last_item(), (0, 0))
time.sleep(0.01) # approximately 0.08s
self.assertEqual(l.peek_first_item(), None)
l.set_with_ttl(0, 0, int(10e6))
l.set_with_ttl(1, 1, int(20e6))
self.assertEqual(l.peek_last_item(), (0, 0))
time.sleep(0.01) # approximately 0.01s
self.assertEqual(l.peek_last_item(), (1, 1))
time.sleep(0.01) # approximately 0.02s
self.assertEqual(l.peek_first_item(), None)
def test_ref_count(self):
l = TTLRU(2, ttl=int(20e6))
x = {1: 2}
self.assertEqual(sys.getrefcount(x), 2)
l[1] = x
self.assertEqual(sys.getrefcount(x), 3)
time.sleep(0.02)
self.assertEqual(sys.getrefcount(x), 3)
l.get(1)
self.assertEqual(sys.getrefcount(x), 2)
# ====================
l = TTLRU(2, ttl=int(20e6))
x = {1: 2}
self.assertEqual(sys.getrefcount(x), 2)
l[1] = x
self.assertEqual(sys.getrefcount(x), 3)
time.sleep(0.02)
self.assertEqual(sys.getrefcount(x), 3)
l.peek_first_item()
self.assertEqual(sys.getrefcount(x), 2)
# ====================
l = TTLRU(2, ttl=int(20e6))
x = {1: 2}
self.assertEqual(sys.getrefcount(x), 2)
l[1] = x
self.assertEqual(sys.getrefcount(x), 3)
time.sleep(0.02)
self.assertEqual(sys.getrefcount(x), 3)
l.peek_last_item()
self.assertEqual(sys.getrefcount(x), 2)
# ====================
l = TTLRU(2, ttl=int(20e6))
x = {1: 2}
self.assertEqual(sys.getrefcount(x), 2)
l[1] = x
self.assertEqual(sys.getrefcount(x), 3)
time.sleep(0.02)
self.assertEqual(sys.getrefcount(x), 3)
l.keys()
self.assertEqual(sys.getrefcount(x), 2)
# ====================
l = TTLRU(2, ttl=int(20e6))
x = {1: 2}
self.assertEqual(sys.getrefcount(x), 2)
l[1] = x
self.assertEqual(sys.getrefcount(x), 3)
time.sleep(0.02)
self.assertEqual(sys.getrefcount(x), 3)
l[1] = 2
self.assertEqual(sys.getrefcount(x), 2)
# ====================
l = TTLRU(2, ttl=int(20e6))
x = {1: 2}
self.assertEqual(sys.getrefcount(x), 2)
l[1] = x
self.assertEqual(sys.getrefcount(x), 3)
time.sleep(0.02)
self.assertEqual(sys.getrefcount(x), 3)
1 in l
self.assertEqual(sys.getrefcount(x), 2)
l = TTLRU(2, ttl=int(20e6))
x = {1: 2}
self.assertEqual(sys.getrefcount(x), 2)
l[1] = x
self.assertEqual(sys.getrefcount(x), 3)
time.sleep(0.02)
self.assertEqual(sys.getrefcount(x), 3)
try:
l[1]
except:
pass
self.assertEqual(sys.getrefcount(x), 2)
# ====================
l = TTLRU(2, ttl=int(20e6))
x = {1: 2}
self.assertEqual(sys.getrefcount(x), 2)
l[1] = x
self.assertEqual(sys.getrefcount(x), 3)
l[1] = 2
self.assertEqual(sys.getrefcount(x), 2)
def test_peek_last_item(self):
l = TTLRU(2)
self.assertEqual(None, l.peek_last_item())
l[1] = '1'
l[2] = '2'
self.assertEqual((1, '1'), l.peek_last_item())